/Engine/Source/Runtime/Landscape/Public/LandscapeRender.h
Initializes the RHI resources used by this resource. Called when entering the state where both the resource and the RHI have been initialized. This is only called by the rendering thread.
virtual void InitRHI ( [FRHICommandListBase](API\Runtime\RHI\FRHICommandListBase) & RHICmdList )